You use the MembershipHelper to log in a member, passing it the username and password of the member logging in.

Members.Login(username, password)

Check https://github.com/Shazwazza/UmbracoIdentity/blob/e5af79578de92aa335ba5dbfb594ba9f6ad9173e/src/UmbracoIdentity.Web/App_Start/Controllers/UmbracoIdentityAccountController.cs#L74 , loginInfo contains the username.

Depending on the type of external authentication, the username can be returned in loginInfo.DefaultUserName or in loginInfo.Login.ProviderKey

We do this:

    string username = string.Empty;
    if (!string.IsNullOrEmpty(loginInfo.DefaultUserName))
    {
        username = loginInfo.DefaultUserName;
    } 
    else if (!string.IsNullOrEmpty(loginInfo.Login.ProviderKey))
    {
        username = loginInfo.Login.ProviderKey;
    }

    //find member by username
    var member = await UserManager.FindByNameAsync(username);
     if (member != null && Services.MemberService.GetById(member.Id).IsApproved)
     {
          await SignInAsync(member, isPersistent: false);
          return RedirectToLocal(returnUrl);
     }

Hmm, that is what I was doing (but inline). Perhaps my logic is in the code that determines whether you are logged in. Does this look right?

    var loggedInUser = Context.GetOwinContext().Authentication.User;
bool bIsAuthenticated = false;
string userName = "";
if (loggedInUser != null)
{
    bIsAuthenticated = loggedInUser.Identity.IsAuthenticated;
    userName = loggedInUser.Identity.Name;
}

bool bIsLoggedin = Members.IsLoggedIn(); // Old way without OWIN/Identity extensions

The bIsAuthenticated results in false, and the userName is not set either... additionally, the old way does also not realize that the user is logged in.

Try

var loggedInUser = Request.GetOwinContext().Authentication.User;

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